Press for the manufacture of stones



c. H. SCHOL. PRESS FOR THE MANUFACTURE or sToNEs. APPLICATION FILED IUNE 29. 1920. 1,429,459, PatentedSept. 19, 1922..

2 SHEETS-SHEET l.

r 28 Fly. I.

MIA/19 c. H. SCHOL. PRESS FOR THE MANUFACTURE OF STONES.

APPLICATION FILED JUNE 29, 1920.

1,429,459. PatentedSept. 19, 1922,

2 SHEETSSHEET 2.

Hill

HMHHHI l box is moreover, provided with a hook 31 engaging with the sliding bottom 32 of the charging hopper, so that in the lateral movement of the mould box the sliding hottom is carried along and is opened when the mould box is situated beneath the hopper and closed in the pressing position thereof, shown in Fig. 1. I

Resting on the plate 25 is a movable bottom 33 connected to the dies 17 and 18, and adapted to be raised by the latter. On this bottom 33 are placed the supporting trays 34 on which the stones are pressed. Each sup-porting'tray as shown in Figure 4 is provided with two upright borders 35 recessed at36 so that when the trays are piled one on.

top of the other each individual tray may be readily taken hold of. Arranged beneath the bottom of the tray at each end thereof is an angle iron 37 adapted to engage the ends of the plate and also adapted to bear on the lateral border 35 of the next lower tray to which end these lateralborders are inwardly beveled as shown at 38. The upper shank of the angle iron has each end bent up and secured on to the lateral border. The superimposed trays serve at the same time as piling box work in which the angle irons secured below the bottoms counteract lateral displacement.

The mould box 21 carries moreover, tWO cheeks 39 adapted to be, engaged by the plungers 19 and 20 when the mould box is to be raised from the finished stones. Located above the plungers and the mould box is an abutment 40 which in accordance with a the number of stones to be simultaneously produced, in the example shown is made in five sections. 6

The driving of the machine is done from the pulley 41 having an idler and being secured on the shaft 42', which also carries the pinion 43 meshing with the gear wheel 44. The latter is mounted upon the main driving shaft 2 which carries, at its other end, a gear wheel 45, being only partially provided with teeth, see Figure 1, and meshing by means of these teeth with the small gear wheel 46, upon the shaft of which a sprocket wheel 47 is mounted. A chain 48 connects this sprocket wheel with another one 49 mounted on the shaft 50. The latter carries a gear wheel 51 which meshes with the rack of the bar 29 serving to draw the whole 55 bottom 25 together with the mould box standing upon it, across under the hopper 28 for the purpose of filling the latter.

When now the teeth of the gear wheel 45 engage with the gear wheel 46, the mould 0 box will be drawn to the right, see Figures 1 and 2, when the shaft 2 rotates continually.

In order to return the mould box under the abutments 40 for the purpose of pressing 5 the contents, a second sprocket wheel 52 is mounted upon shaft 50, said wheel being connected by means of a chain 53. with the sprocket 45 mounted on the same shaft as the gear wheel 55. A larger gear wheel 56 meshes with the latter, and this wheel 56 is also only partially provided with teeth and mounted on shaft 57 rotated through the bevel gears 58, by the shaft '4, which in turn is rotated by shaft 2 through the bevel gears 60 and 3.

When the teeth of the gear wheel 56 come into engagement with the gear wheel 55, then the gear wheel 51 is moved through the transmission over chain 53,, in the other direction so that the mould box. 25 is re.- turned to the other side, that is to say, to the left in Figures 1 and 2.

In similar manner follows, by means of Y the chains 61 and 62, the back and forth movement of two gear wheels 63, mounted on the shaft 72,. which wheels mesh with the racks 64 mounted upon the bar 24 on the grid 23, whereby the grid willbemoved back and forth in the same manner as the bar 29. For this purpose a partially toothed gear wheel .65 is mounted upon the shaft 57 and meshing with a pinion 66on the same shaft with the sprocket wheel 67 for the chain 62, which transmits its movement to the sprocket wheel 73 mounted upon shaft 7 2. I

On shaft 2 is moreover mounted another partially toothed gear wheel 68 -1neshing with gear wheel 69 mounted on the shaftof the sprocket wheel 70. The chain 61 runs 71 mounted uponthe sa ne shaft 72 as the gear-wheel 63. 4

of the hopper is opened to enable the mould a way that first, due to the action of the cam 5 the plunger 16 is operated to raise the plate 25 and thereby the whole stone into contact with the abutment 40 thereby shap-.

ing the upper portion of the stone. "Then the lower portion of the stone is pressed by the action of the cam discs 11 and 12 which actuate the plungers 17'and 18 and thus force the plate 33 against the stone.

After this operation thecams 8 and 9 become operative forcing the plungers 19 and 20 against the cheeks 39 of the mould box 21 and thereby raise the whole mouldbox 100 over the latter and over the sprocket Wheel i away from the finished stones. The five stonessupported on their trays 34 can now be removedfrom the press and piled up while another supporting tray maybe inserted and the operation repeated. The opl erating mechanisms are connected with the facture of solid stones in which case it is necessary to dispense with the use of the core grid and to employ a mould box in' which the longitudinal walls are solid.

The press may further be used for the production of large tiles for which purpose an appropriate mould box is chosen, provided with'only a single chamber and di pensing with the partitions 22. In this case the abutment 40 would of course consist of a single member shaped precisely to fill the interior of the mould box. The subdivision into five individual parts would be done away with. The press may of course be structurally modified so as to enable more than five, say six or more, stones to. be produced simultaneously. Instead of arranging the bottom 32 of the charging hopper for operation by a hook as shown it may be opened and closed manually if desired such as by an operating lever or the like.

Now what I claim and desire to secure by Letters Patent is the following:

1. In presses for the manufacture of stones, particularly from blast furnace sla the combination of fixed abutments with moulds movable against the abutments, and means for raising the bottom in the mold substantially as and for the purpose described.

2. In presses for the manufacture of stones, particularly from blast furnace slag, the combination of fixed abutments with moulds movable against the abutments and provided with a movable bottom, and means for moving the bottom relatively to the mould substantially as and for the purpose described.

3. In presses for the manufacture of stones, particularly from blast furnace slag, the combination of fixed abutments with moulds movable against the abutments and means for raising the moulds and the bottoms of themoulds independently of each other, substantially as and for the purpose described.

4. In presses for the manufacture of stones, particularly from blast furnace slag,

the'combination of fixed abutments with moulds movable against the abutmentsand plungers for raising the moulds and its bottoms independently, substantially as and for the purpose described.

5. In presses for the manufacture of stones, particularly from blast. furnace slag, the combination of fixed abutments with moulds movable against the abutments and, plungers ofwhich one is'employed to force.

the" moulds together with its charge against the abutments, others for the purpose of raising the bottoms of the moulds and others for raising the mould-frames away from the pressed stones, substantiallyas and for -the purpose described.

6. In presses for the manufacture of.

stones, particularly from blast furnace slag, the combination of fixed abutments with moulds movable against the abutments and raising the bottoms of the moulds andothers for raising the mould-frames away from the pressed stones, all plungers being moved by a common cam-shaft, substantially as the combination'of fixed abutments, mova ble moulds provided with movable bottoms and a plate supporting the moulds adapted to be moved awayfrom the charging hopper under the fixed abutments, substantial as and for the purpose described.

8. In presses for the manufacture of stones, particularly from blast furnace slag, the combination of fixed abutments, movale moulds provided with movable bottoms and trays on the bottom of the moulds for supporting the stones during the pressing and drying operations, said trays being provided with recessed lateral members, sub-. stantially as and for the purpose described.

9. In presses for the manufacture of stones, particularly from blast furnace slag, the combination of fixed abutments, movable moulds provided with movable bottoms and trays on the bottom of the moulds, said trays being provided with recessed lateral the combination of fixed abutments,acharg-" ing hopper adjacent said abutments, movable moulds provided with movable" bottoms and trays on the bottom ofthe moulds,

said trays being provided with recessed lateral members and downwardly projecting rails, said members and said rails interengaging between trays in diiferent layers 85 plunger of which one is employed to force the moulds together with its charge against the abutments, others for the purpose of when piled above each other, and a plate and other plunge-rs for raising the bottoms supporting the moulds adapted to be moved and the mould frame, trays for supporting away from. the charging hopper under the the stones and a plate for supporting the fixed abutments, substantially as andv for moulds above their plunger, substantially as I 5 the purpose described. and for the purpose described. 15

11. In presses for the manufacture of Iclaim the foregoing as my invention, 1 stones, particularly from blast furnace slag, have signed my name this thirty-first day of the combination of fixed abutments, mov- May 1920. able moulds bottoms, movable in the 10 moulds, a plunger for raising the moulds, CARL HEINRICH SCHO-L. E v i 

